Best-in-class MetShield ice and water underlayment protects the roof structure from water seepage caused by ice dams and wind-driven rain. Designed specifically for high-temperature applications of Steel, Aluminum, Copper, Zinc*, CRCQ and A606 roof installations. It will resist temperatures up to 250° without degradation of the adhesive, and self seals around roofing nails, screws and clips used to install the primary roofing system. This high-tensile strength underlayment is a 40 mil SBS modified bitumen with a UV-resistant anti-slip polyethylene woven top facer and is required under all Drexel Metals roof warranted systems.
Surface – White polyolefin composite with a factory applied anti-skid coated film Membrane – Rubberized asphalt
Roll weight – 55 lbs Roll length – 66 ft Roll width – 36 in Roll size – 198 sq/ft Roll coverage – 160 sq/ft* Rolls per pallet – 25 Rolls per truck load – 650 *Coverage calculated after recommended overlap
Thickness – test method: ASTM D1970, results: 40 mils Low Temperature Flexibility – test method: ASTM D1970, results: -45°F Adhesion to Plywood at 75°F – test method: ASTM D1970, results: 35lbs/ft Lap Seam Adhesion at 75°F – test method: ASTM D1970, results: 21lbs/ft Sealability Around Nail – test method: ASTM D1970, results: pass Slip Resistance – test method: ASTM D1970, results: pass Thermal Stability – test method: ASTM D1970, results: pass Moisture Vapor Permeance – test method: ASTM D1970, results: 0.02 perms Water Absorption – test method: ASTM D1970, results: 0.5% Tensile Strength Machine Direction – test method: ASTM D412, results: 250 psi Tensile Strength Transverse Direction – test method: ASTM D412, results: 1390 psi Elongation at Break Machine Direction – test method: ASTM D412, results: 250% Elongation at Break Transverse Direction – test method: ASTM D412, results: 170% Drexel Metals test reports are for specific attachments, material gauges, clip spacing and panel widths. A complete specification and listing is available.
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